SAFETY HAT Russian patent published in 2001 - IPC

FIELD: facilities for protecting human head against shock. SUBSTANCE: safety hat has case incorporating shock-absorbing proprieties due to varying shape of case surface, and internal equipment. Case is made in the form of system of intersecting spherical shells arranged in rods to form depressions at junction points of shells. Thickness of shells decreases from their base to top. Tops of shells of next row oppose depressions of previous one. EFFECT: enhanced side shock-absorbing ability; facilitated manufacture of case. 2 cl, 4 dwg